The daily maintenance cost of a double scrws compost turning machine is not high; it's at a medium-to-low level. The core costs are concentrated in wear parts, lubricants, and labor. As long as the fertilizer produciton mahine is used correctly, the overall costs are controllable.

I. Main Maintenance Cost Components

1. Wear Parts (largest proportion)

The spiral blades, wear strips, bearings, seals, chains, and walking wheels are the main wear parts. Blades are normally replaced every 1-2 years, and bearings and seals are maintained/replaced approximately every year. The price per unit is not high, and the cost of batch replacement is moderate.

2. Oils and Lubrication

Hydraulic oil, gear oil, and grease are replaced quarterly/biannually. The usage is fixed and the cost is low, belonging to regular consumable expenses.

3. Labor and Inspection

Mainly daily inspection, cleaning, tightening, and lubrication. The workload is small, and no dedicated maintenance worker is needed; ordinary operators can complete the tasks, resulting in extremely low labor costs.

4. Electrical and Hydraulic Systems

The motor, reducer, and hydraulic system have high reliability and rarely fail under normal circumstances. The probability of repair is low, and unexpected costs are minimal.

II. Cost Depends on Usage Habits

• Low maintenance cost: No hard objects in the material, appropriate moisture content, no overloading, and timely lubrication and cleaning. Wear parts have a long lifespan, and the annual maintenance cost is usually several thousand to over ten thousand yuan.

• Higher cost: Frequent jamming by hard objects, long-term overloading, excessively wet and sticky materials, and lack of maintenance can lead to blade deformation, bearing burnout, and transmission damage. Repair and replacement costs will increase exponentially.